41
3.2 Operations
Cooling Circuit
(d) Shut-off valve after liquid
rec
eiver.
(e) Wait that units automatically
stops with low pressu
re alarm.
(f) Shut-off RS road and SS stand-by
comp
ressors suction valves.
(g) Check unit low pressure is lower than 0bar.
CAUT
ION
! All unit refrigerant is sealed from compressors suction valves to liquid receiver valve.
Main serviceable parts:
• HPL Service Ports 3.3.
2
• Filter Drier and Sight Glass 3
.
4
• Orific
e and Expansion Valve 3.
5
• Evaporator
• EVP Servic
e Ports 3.3.2
• CPR Crankcase Pressure Regu
lation Valve 3.6
• LP Servic
e Ports 3.3.2
• Service Po
rts
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